The Waverly Pilot is claimed to be the first "smart earpiece" capable of translating between two languages, similar to the BabelFish in Douglas Adams' sci-fi novel, _The Hitchhikers' Guide to the Galaxy_, providing instantaneous translation to its wearer. While this first generation device works only when speaking to someone also wearing an earpiece, future generations could listen to everything happening nearby, so pairs of devices won't be needed. It is designed to work offline so it won't incur data charges when used overseas.